££ FROM AMAZON >>
The Mermaid Swim Fin from Finis is great fun for children to use at the pool and in swimming lessons. It is a great way to teach a good butterfly kick technique and will fit shoe sizes 17 (up to approx 12 years). This single blade fin has dual rubber foot pockets with drainage holes at the front and a divide to keep feet separate. It has an easy adjustable heel strap with a neoprene strap cover to for a secure and comfortable fit.